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MPSA27 from FSC,Fairchild Semiconductor

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MPSA27

Manufacturer: FSC, FAIRCHILD-ON

Leaded Small Signal Transistor Darlington

Partnumber Manufacturer Quantity Availability
MPSA27 FSC, FAIRCHILD-ON 11675 In Stock

Description and Introduction

Leaded Small Signal Transistor Darlington # Introduction to the MPSA27 Transistor  

The **MPSA27** is a high-voltage, low-power **PNP bipolar junction transistor (BJT)** designed for general-purpose amplification and switching applications. Known for its reliability and performance, this component is commonly used in circuits requiring moderate current handling and high voltage tolerance.  

### Key Features  
- **High Voltage Capability**: The MPSA27 can handle collector-emitter voltages (VCEO) of up to **-100V**, making it suitable for applications where voltage regulation or signal conditioning is necessary.  
- **Low Power Dissipation**: With a maximum power dissipation of **625mW**, it is ideal for small-signal amplification and low-power switching tasks.  
- **Moderate Current Handling**: The device supports a continuous collector current (IC) of **-500mA**, sufficient for driving small loads or interfacing with other components.  

### Applications  
The MPSA27 is widely used in:  
- **Audio amplifiers** and **preamplifiers**  
- **Voltage regulators** and **power supply circuits**  
- **Signal switching** and **driver stages**  
- **General-purpose electronic circuits** requiring PNP transistors  

### Electrical Characteristics  
- **DC Current Gain (hFE)**: Typically ranges from **40 to 250**, depending on operating conditions.  
- **Low Saturation Voltage**: Ensures efficient switching performance.  

Due to its robust design and versatility, the MPSA27 remains a popular choice among engineers and hobbyists for various electronic projects. Proper heat management and adherence to datasheet specifications are recommended for optimal performance.

Application Scenarios & Design Considerations

Leaded Small Signal Transistor Darlington

Alternative Part Number

  • 2N6426 --: NPN Darlington transistor with comparable high gain and current rating, widely available and a common substitute for MPSA27.
  • BC517 --: NPN Darlington transistor with high hFE and similar voltage/current ratings, suitable for general switching and amplification.
  • 2N5306 --: NPN Darlington transistor offering similar gain and current capability, usable as a functional replacement in most circuits.
  • MMBTA28 --: NPN Darlington transistor in SOT-23 with similar electrical characteristics, usable when a surface-mount equivalent is acceptable.

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